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240 Chapter 11 Solving Problems
Your computers should be on the same time zone. If they are not on the same time
zone, send the following UNIX command:
sudo systemsetup -settimezone ‘US/Pacific’
For other time zones, see the man page for systemsetup. For instructions on sending
UNIX commands through Apple Remote Desktop, see the Apple Remote Desktop
Administrator’s Guide.
2 In Apple Remote Desktop, send the following UNIX command to all computers:
sudo systemsetup -gettime
Your computers should have times within a few minutes of each other. If they have a
wide range of times, send the following UNIX command:
sudo systemsetup -settime
current_time
Replace
current_time
with the current time in 24-hour format, using HH:MM:SS (hour,
minute, second) notation.
Testing Your DNS Service
Your DNS service should allow you to discover a server’s domain name when given an
IP address, or to retrieve an IP address when given a domain name. If your computers
can’t do these tasks, perform further analysis on your DNS service. For a detailed
description of DNS and for instructions on configuring DNS, see Network Services
Administration.
If you have Apple Remote Desktop installed, you can quickly test your entire network.
In Apple Remote Desktop, create a scanner that displays computers with IP addresses
in the range distributed by your DHCP server. If a computer is turned on, is not in sleep
mode, and is connected to your network, the computer should be in the scanner.
The scanner displays the IP address given to the computer and the computer’s host
name. Computers that are not assigned host names by the DNS service are listed
without host names. If a computer is listed and has an appropriate IP address and host
name, the computer is receiving DHCP and DNS service.
For more information about how to use scanners in Apple Remote Desktop, see the
Apple Remote Desktop Administrator’s Guide.
If you do not have Apple Remote Desktop installed, you can perform the following task
to test a single computer’s ability to receive DNS service.
To test your network’s DNS service on a single computer:
1 On a network computer that is not the server providing DNS service, open Network
Utility.
2 In the Lookup pane of Network Utility, enter the domain name of your Open Directory
master server and click Lookup.